Home / 158,749.60-219,067.56-87,130.84

Finding the Fourth Proportional to 158,749.60, 219,067.56 and 87,130.84

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Solution

The fourth proportional to 158,749.60, 219,067.56 and 87,130.84 is: 120,236.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,749.60 : 219,067.56 = 87,130.84 : x
  2. Step 2: Convert to fraction form
    158,749.60/219,067.56 = 87,130.84/x
  3. Step 3: Cross multiply
    158,749.60x = 219,067.56 × 87,130.84
  4. Step 4: Simplify right side
    158,749.60x = 19,087,540,519.55
  5. Step 5: Solve for x
    x = 19,087,540,519.55/158,749.60
  6. Step 6: Final answer
    x = 120,236.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.